MASSIVE 1/5 SCALE FOKKER 70 & 1/6 SCALE RC LOCKHEED SUPER CONSTELLATION AIRLINERS - LMA SLEAP - 2023

AS IVE SAID BEFORE - SOMETIMES IN THIS HOBBY CERTAIN MODELS COME ALONG THAT JUST BLOW THE OTHERS CLEAN OUT OF THE WATER !

DONT FORGET THAT BOTH OF THESE PILOTS ARE FLYING THEIR PRIDE AND JOY (BOTH COSTING SEVERAL THOUSANDS OF POUNDS AND THOUSANDS OF MAN HOURS TO BUILD) IN THIS GUSTING 25+ mph WIND TO ENTERTAIN THE PAYING PUBLIC AT THIS LMA (large model association) ORGANISED FLYING EVENT,

THE ONLY THING WE CANNOT CONTROL IS THE WEATHER AS THESE SHOWS ARE BOOKED IN MANY MONTHS BEFORE THE EVENT, SO EVERY PILOT PRAYS FOR GOOD WEATHER ON THE DAY,

NONE OF THE PILOTS ARE UNDER ANT CONTRACT OR AGREEMENT TO FLY ANY MODELS AT THESE SHOWS IF THEY FEEL NOTHING BUT 100% CONFIDENT OF THEIR MODEL AND MORE IMPORTANTLY THEIR SKILLS TO DO SO,

THEY DO IT FOR THE LOVE OF IT BELIEVE IT OR NOT, NO PILOT AT THIS EVENT OR MOST OF THE OTHER EVENTS IN THE UK GET PAID TO DISPLAY THEIR MODELS - ALL FUNDED BY THEMSELVES,

THANK GOODNESS THESE BOYS AND GIRLS DO THIS FOR FREE BECAUSE THEY ARE BRINGING RC MODEL FLYING TO THE UP COMING YOUNGSTERS IN THE CROWD - SOME OF WHOM MAY TAKE UP THE HOBBY THUS KEEPING THIS GLORIOUS INDUSTRY GOING !

CHECK OUT PAUL OPERATING THE FLAPS ON THE FOKKER 70 HERE -

https://www.facebook.com/100007694234430/videos/1757437984522659/

CONSTELLATION - BUILDER / OWNER / PILOT - KEITH MITCHELL.
PAINT SCHEME APPLIED BY - PHILIP NOEL OF ULTIMATE SCALE FINISHES,
CHECK OUT OUR PLAYLIST OF CONSTELLATIONS HERE -

https://www.youtube.com/watch?v=_djV0yBnqHQ&list=PLnnDxY-6mwEEG_A4Q82CPe23eKjmbpJqO

KEITH SENT THIS INFO OVER ON THE MODEL -

SUPER CONSTELLATION N6937C "STAR OF AMERICA",
SCALE - 1/6 TH,
W-SPAN - 21 FT,
LENGTH - 19 FT,
WEIGHT - 220 LBS (100KG),
WING AREA - 46 SQ FT,
ENGINES - 4 X ZDZ 90cc SINGLE CYLINDER PETROL / GAS,
PROPS - 4 X 28 X 10 BIELA CARBON,
RADIO - FUTABA 12MG 14 CHANNEL T,
22 X SERVOS,
10 X BATTERY PACKS,
13 CHANNELS - AILERONS, ELEVATOR, RUDDER, FLAPS (4 X SERVOS) THROTTLES (4 X SERVOS) RETRACTS, LANDING LIGHTS,

IT TOOK KEITH AND FRIENDS AROUND 5 YRS (5,500 HRS) TO BUILD CONNIE THEN THE TEST FLIGHTS STARTED !
THE UNDER CARRIAGE ALONE HAD 1,000 HOURS SPENT DESIGNING THEN BUILDING FROM SCRATCH !

THERE ARE VARIOUS REASONS WHY THIS MODEL IS USING 2 BLADE PROPS INSTEAD OF 3 OR 4 BLADE,
THE ENGINES ARE NOT CAPABLE OF PRODUCING ENOUGH POWER TO TURN 4 BLADED SCALE PROPS EFFICIENTLY + THE PRICE OF FOUR 4 BLADED PROPS WOULD BE VERY EXPENSIVE,
SO THE TWO BLADED PROPS MATCH THE POWER OUTPUT OF THESE ENGINES PERFECTLY,

TO FIT FOUR BLADED PROPS ON THIS MODEL WOULD PROBABLY NEED MULTIPLE CYLINDER RADIAL ENGINES OF LARGE CAPACITY TO TURN THE PROPS AT THE DESIRED POWER LEVEL,
SO THATS SEVERAL THOUSAND POUNDS WORTH OF ENGINES + REDESIGNING THE ENGINE MOUNTS / BHDS ETC ON THE MODEL + THE PRICE OF FOUR 4 BLADED PROPS + MORE ADDED / UNWANTED WEIGHT !

SO AERO MODELLING IS A MATTER OF COMPROMISING ON THE DESIGN OF THE MODEL ESPECIALLY WEIGHT SAVING TECHNICS AND ALSO MONEY SAVING IDEAS TO END UP WITH A FLYABLE SCALE MODEL OF THE REAL THING,

One little correction, Pete, the model had to undergo 12 flights over not less than 2 hrs as it's over 80kg. Some other links during that testing schedule here:

https://www.youtube.com/watch?v=9pKirBFkFGs&feature=youtu.be
https://www.youtube.com/watch?v=5Hq5lYMFP88&feature=youtu.be
https://www.youtube.com/watch?v=Vf0LZbQCSGA

OWNER / BUILDER / PILOT - PAUL BELLINGER,

Fokker 70 ,
scale 1/6,
span 4.6m,
lenght 5.08m,
weight dry 51kg...

Own plans and constructed by myself over 5yrs from polystyrene, glass composite, with carbon fibre spars. All undercarriage, thrust reversers, and scale fowler flaps again my own design and construction, with the thrust reversers being added 3 yrs ago after a lengthy development. Paint work by me using 2 pack non iso car paint.

The model has a total of 41 servos, 6 futaba rx's, and 8 batteries, three of which are 6v, 7ah pb, and the rest 6v 2000mh eneloops.
Controlled by 2 tx's the primary pilots tx controls just the aileron, elevator, rudder, and throttle, with the other person operating u/c, flaps, spoilers, and thrust reversers. Rate gyros fitted to the ailerons and eagle tree telemetry to give airspeed reading normally monitored by a 3rd person and given to the pilot on request.

Powered by two PST 1300R turbines, fuel capacity 10ltrs of kerosene, with normally about 6ltrs used in a 10 min flight. First flew in 2015 and is capable of maintaining height and control on one engine,

PLEASE LIKE US ON FACEBOOK AND SUBSCRIBE TO OUR CHANNEL TBOBBORAP1 AND HIT THE "BELL" NOTIFICATION FOR FUTURE UPLOADS NOW (ITS FREE) AND KEEP UP TO DATE AND WATCH OUR 4K / HD QUALITY RC MODELS VIDEOS AND STILL PHOTOGRAPHS UPDATES OF THE MAJOR UK RC SHOWS AND CLUB FLY-INS AT -

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FILMED AT AN LMA ORGANISED RC MODEL AIRCRAFT SHOW AT SLEAP AIRFIELD,
HARMER HILL, SHREWSBURY, SY4 3HE ON 29-7-2023,